From 72c7444faf0177277bac9a57fe38a3551d40cdd1 Mon Sep 17 00:00:00 2001
From: Jubilee Young <workingjubilee@gmail.com>
Date: Tue, 16 Jul 2024 21:07:44 -0700
Subject: [PATCH] unix: Unsafe-wrap stack_overflow::cleanup

Editorialize on the wisdom of this as we do.
---
 std/src/sys/pal/unix/stack_overflow.rs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/std/src/sys/pal/unix/stack_overflow.rs b/std/src/sys/pal/unix/stack_overflow.rs
index 160e58e16a5c4..e016f3b3ca4b3 100644
--- a/std/src/sys/pal/unix/stack_overflow.rs
+++ b/std/src/sys/pal/unix/stack_overflow.rs
@@ -155,8 +155,13 @@ mod imp {
         }
     }
 
+    /// # Safety
+    /// Must be called only once
+    #[forbid(unsafe_op_in_unsafe_fn)]
     pub unsafe fn cleanup() {
-        drop_handler(MAIN_ALTSTACK.load(Ordering::Relaxed));
+        // FIXME: I probably cause more bugs than I'm worth!
+        // see https://github.com/rust-lang/rust/issues/111272
+        unsafe { drop_handler(MAIN_ALTSTACK.load(Ordering::Relaxed)) };
     }
 
     unsafe fn get_stack() -> libc::stack_t {